维护公路环境使其保持畅、洁、美状态，不仅是每个公路养护人员的职责，来往车辆乘客和行人也有义务积极配合。但经常见到的是，公路养护人员的劳动受不到应有的尊重，有些乘客在公路上随意乱扔废弃物，使本来清洁的路面变得又脏又乱。更令人生气的是，有些货车因超载引起抛洒 Maintaining the highway environment to keep it clean, clean and beautiful is not only the responsibility of each road maintenance worker, but also the obligation of passengers and pedestrians who come and go. However, it is not uncommon to find that the work of road maintenance workers is not properly respected. Some passengers throw litter at random on the roads, making the otherwise clean roads messy and messy. Even more annoying is that some trucks are spilled due to overloading